package net.lshimokawa.pap6;

public class Calculadora {

	public int sumar(int a, int b) {
		return a+b;
	}

	public int restar(int a, int b) {
		return a-b;
	}

	public int multiplicar(int a, int b) {
		return a*b;
	}

	public int dividir(int a, int b) {
            if (b==0 )
                return -1;
            else
		return a/b;
	}
}
